"If you double the number of experiments you do per year, you're going to double your inventiveness."

"I believe that there's nothing wrong with being eccentric. If you're going to be a leader, you have to be willing to be different."

"I'm a big believer in the idea that if you have a great idea, you should pursue it relentlessly."

"We are not competitors with bookstores. We are competitors with sleep."

"If you don't like to be criticized, you should do nothing."